connexion_request.rb

  def notify_invitee
    if to_internal_user?
      UserMailer.delay.new_connexion(self)
    else 
      UserMailer.delay.new_external_user_connexion(self)
    end        
  end
  
  // this is the model 

connexion_request_controller.rb

  def create_connexion_request
    @error = true
    @patient = false
    @patient = (Patient.find_by_email(params[:connexion_request][:email].downcase) || false) if params[:connexion_request].has_key?(:email)

    # request to existent patient user
    if @patient
      @connexion_request = @user.connexion_requests.new(params[:connexion_request])
      # check if connexion exists?
      if (connexion_exists = @user.connexions.where(patient_id: @patient).exists?)
        flash[:alert] = "Já existe uma ligação com #{@patient.name}."

      # check if request exists?
      elsif (request_exists = ConnexionRequest.accepted_or_pending_request_exists?(@user, @patient))
        flash[:alert] = "Já existe um pedido de ligação pendente ou aceite com #{@patient.name}."

      # this request does not exists, is not accepted or pending, or connexion doesn't exist yet
      else       
        @connexion_request.invitee = @patient
        @connexion_request.status = 0
        if @connexion_request.save
          flash[:notice] = t(:connexion_successfully_created, name: @connexion_request.invitee.name)
        else
          return
        end
      end

    # request by email
    elsif params[:connexion_request].has_key?(:email)
      email = params[:connexion_request][:email].downcase

      unlocked_params = ActiveSupport::HashWithIndifferentAccess.new(params[:connexion_request])
      
      @connexion_request = @user.connexion_requests.new(unlocked_params)
      # check if request exists?
      if (request_exists = ConnexionRequest.accepted_or_pending_request_exists?(@user, email, true))
        flash[:alert] = "Já existe um pedido de ligação pendente para o email #{email}."

      # this request does not exists, is not accepted or pending, or connexion doesn't exist yet
      else
        @connexion_request.status = 0
        if @connexion_request.save
          flash[:notice] = t(:connexion_successfully_created, name: "#{@connexion_request.name} #{@connexion_request.email}")
        else
          return
        end
      end

gistfile1.txt

jaeku:~/workspace/bc (new_release) $ rake jobs:work
[Worker(host:jaeku-jaeku-site-2612732 pid:1217)] Starting job worker
[Worker(host:jaeku-jaeku-site-2612732 pid:1217)] Job Delayed::PerformableMailer (id=6) RUNNING
[Worker(host:jaeku-jaeku-site-2612732 pid:1217)] Job Delayed::PerformableMailer (id=7) RUNNING
[Worker(host:jaeku-jaeku-site-2612732 pid:1217)] Job UserMailer.new_external_user_connexion (id=8) RUNNING
[Worker(host:jaeku-jaeku-site-2612732 pid:1217)] Job UserMailer.new_external_user_connexion (id=8) COMPLETED after 1.0627
[Worker(host:jaeku-jaeku-site-2612732 pid:1217)] 1 jobs processed at 0.8808 j/s, 0 failed

// this is when i run the delayed_job server to process jobs

user_mailer.rb

  def new_external_user_connexion(connexion_request)
    #email_category "New external user connexion request"
    @connexion_request = connexion_request
    @from = @connexion_request.origined
    @to_name = @connexion_request.name.present? ? @connexion_request.name : false
    @to_email = @connexion_request.email
    @email_title = t('mailer.connexion.subject.new_external', name: @from.name, product: PRODUCT_NAME)
    mail(:from => "#{@from.name} <no-reply@#{DOMAIN}>", :to => "#{@to_email}", :subject => @email_title)
  end
  
  // the user mailer